Tahiti Pehrson estimates he spent 1,500 hours hand-cutting the three 17-foot paper towers that greet visitors to Art on Paper, which opens today at Pier 36 in Lower Manhattan. Light radiates through the sculptures’ roughly 100,000 holes, formed in overlapping floral patterns based on the Fibonacci sequence, sliced with over 11,000 blades. “People can really interact and move inside it,” he told Hyperallergic, while he was still putting the finishing touches on the colossal yet elegant installation. “You’re part of it. I like the idea of people being included in art rather than being in opposition.”